Hello
I'm testing a ir2153 based smps powering a Audio Amp as it´s not powering the subwoofer. I have verified both MOSFETS drive by IR2153 are blown same as the IC, so I have replaced all of them. For the first attempt I disconnect the Amp for testing the PSU and connect a 100W series bulb for testing purposes.
When I switched on the mains supply the bulb turned on and turn off, oscillating all the time. Is that a normal behavior? does it mean that the IR2153 is providing output to the Mosfets with no issues or does it mean that there´s still any short or issue in the pcb?
I appreciate your help.
I'm testing a ir2153 based smps powering a Audio Amp as it´s not powering the subwoofer. I have verified both MOSFETS drive by IR2153 are blown same as the IC, so I have replaced all of them. For the first attempt I disconnect the Amp for testing the PSU and connect a 100W series bulb for testing purposes.
When I switched on the mains supply the bulb turned on and turn off, oscillating all the time. Is that a normal behavior? does it mean that the IR2153 is providing output to the Mosfets with no issues or does it mean that there´s still any short or issue in the pcb?
I appreciate your help.